Of course, there are tons of disputed phonetic pronounciations of names throughout the series, so I'm just wondering how you say some of them. Feel free to add your own.
Sephiroth:
Seff-ih-roth
Aeris:
Air-iss
Cait Sith:
Kate Sith
Yuffie:
Yuff-ee
Rinoa:
Rinn-oh-ah
Seifer:
See-fur
Eiko:
Ee-ee-koe
Zidane:
Zidd-ane
Brahne:
Brawne
Eidolon:
Ee-doe-lonn
Tidus:
Tie-dus
Chocobo:
Choke-a-bow
Bahamut:
Baa-hah-mutt
... I'm sure there are more, now post!